\begin{tikzpicture}[scale=0.6]
	\tkzDefPoints{0/0/A, 7/0/B, 7/3.5/C,  0/3.5/D}
	\tkzDrawPolygon(A,B,C,D)
	\tkzLabelPoints[above](D,C)
	\tkzLabelPoints[below](A,B)
\end{tikzpicture}

